[ns] All nodes.

[Rishi Bhargava <rishibha@pollux.usc.edu>]

Is there some array of all nodes maintained in C++ space. I know
that there is one in the Tcl space but I do not want to go from C++ space
to Tcl space to access the item. To b eclear I want to access the
pointer to nth node instantiated. Any suggestions.

Thanx,
Rishi